Even in bathrooms finished to La Jolla's standard, toilets show the same warning signs as anywhere else, and catching them early can save even more here. If the tank refills in a quiet house, a flapper is letting water through all the time, a small leak that keeps going. If it keeps running after a flush, the fill valve is often worn out. If the toilet rocks at the base, the mounting has often gone loose, and a failed wax seal below can send water into finished floors and the rooms beneath them. With the flooring in many La Jolla homes, that's a costly repair to avoid.
Most of the everyday work is repair, since tank parts can be replaced one at a time and a sound toilet keeps working with light upkeep. Replacement makes sense when the porcelain is cracked, when repairs keep adding up on a worn out toilet, or, often here, during a renovation, when modern units use far less water and a bidet can be added along with the other fixtures. The recommendation is based on your actual toilet, explained in plain English, and the decision is yours.
It helps to know that a toilet that backs up again and again usually points to a drain line problem, which has its own service and page. Everything on the toilet itself, whether it runs, rocks, needs a new seal or needs replacing, is performed by or under a licensed contractor to the standard your bathroom calls for, set level, sealed and finished neatly. You get straight answers and all the time you need to decide.